auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 469 deletions

diff --git a/arm-semi.c b/arm-semi.c
deleted file mode 100644
index cd77d1d..0000000
--- a/arm-semi.c
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
- *  Arm "Angel" semihosting syscalls
- *
- *  Copyright (c) 2005, 2007 CodeSourcery.
- *  Written by Paul Brook.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <time.h>
-
-#include "cpu.h"
-#ifdef CONFIG_USER_ONLY
-#include "qemu.h"
-
-#define ARM_ANGEL_HEAP_SIZE (128 * 1024 * 1024)
-#else
-#include "qemu-common.h"
-#include "sysemu.h"
-#include "gdbstub.h"
-#endif
-
-#define SYS_OPEN        0x01
-#define SYS_CLOSE       0x02
-#define SYS_WRITEC      0x03
-#define SYS_WRITE0      0x04
-#define SYS_WRITE       0x05
-#define SYS_READ        0x06
-#define SYS_READC       0x07
-#define SYS_ISTTY       0x09
-#define SYS_SEEK        0x0a
-#define SYS_FLEN        0x0c
-#define SYS_TMPNAM      0x0d
-#define SYS_REMOVE      0x0e
-#define SYS_RENAME      0x0f
-#define SYS_CLOCK       0x10
-#define SYS_TIME        0x11
-#define SYS_SYSTEM      0x12
-#define SYS_ERRNO       0x13
-#define SYS_GET_CMDLINE 0x15
-#define SYS_HEAPINFO    0x16
-#define SYS_EXIT        0x18
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
-#define GDB_O_RDONLY  0x000
-#define GDB_O_WRONLY  0x001
-#define GDB_O_RDWR    0x002
-#define GDB_O_APPEND  0x008
-#define GDB_O_CREAT   0x200
-#define GDB_O_TRUNC   0x400
-#define GDB_O_BINARY  0
-
-static int gdb_open_modeflags[12] = {
-    GDB_O_RDONLY,
-    GDB_O_RDONLY | GDB_O_BINARY,
-    GDB_O_RDWR,
-    GDB_O_RDWR | GDB_O_BINARY,
-    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC,
-    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
-    GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC,
-    GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
-    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND,
-    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY,
-    GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND,
-    GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY
-};
-
-static int open_modeflags[12] = {
-    O_RDONLY,
-    O_RDONLY | O_BINARY,
-    O_RDWR,
-    O_RDWR | O_BINARY,
-    O_WRONLY | O_CREAT | O_TRUNC,
-    O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
-    O_RDWR | O_CREAT | O_TRUNC,
-    O_RDWR | O_CREAT | O_TRUNC | O_BINARY,
-    O_WRONLY | O_CREAT | O_APPEND,
-    O_WRONLY | O_CREAT | O_APPEND | O_BINARY,
-    O_RDWR | O_CREAT | O_APPEND,
-    O_RDWR | O_CREAT | O_APPEND | O_BINARY
-};
-
-#ifdef CONFIG_USER_ONLY
-static inline uint32_t set_swi_errno(TaskState *ts, uint32_t code)
-{
-    if (code == (uint32_t)-1)
-        ts->swi_errno = errno;
-    return code;
-}
-#else
-static inline uint32_t set_swi_errno(CPUState *env, uint32_t code)
-{
-    return code;
-}
-
-#include "softmmu-semi.h"
-#endif
-
-static target_ulong arm_semi_syscall_len;
-
-#if !defined(CONFIG_USER_ONLY)
-static target_ulong syscall_err;
-#endif
-
-static void arm_semi_cb(CPUState *env, target_ulong ret, target_ulong err)
-{
-#ifdef CONFIG_USER_ONLY
-    TaskState *ts = env->opaque;
-#endif
-
-    if (ret == (target_ulong)-1) {
-#ifdef CONFIG_USER_ONLY
-        ts->swi_errno = err;
-#else
-	syscall_err = err;
-#endif
-        env->regs[0] = ret;
-    } else {
-        /* Fixup syscalls that use nonstardard return conventions.  */
-        switch (env->regs[0]) {
-        case SYS_WRITE:
-        case SYS_READ:
-            env->regs[0] = arm_semi_syscall_len - ret;
-            break;
-        case SYS_SEEK:
-            env->regs[0] = 0;
-            break;
-        default:
-            env->regs[0] = ret;
-            break;
-        }
-    }
-}
-
-static void arm_semi_flen_cb(CPUState *env, target_ulong ret, target_ulong err)
-{
-    /* The size is always stored in big-endian order, extract
-       the value. We assume the size always fit in 32 bits.  */
-    uint32_t size;
-    cpu_memory_rw_debug(env, env->regs[13]-64+32, (uint8_t *)&size, 4, 0);
-    env->regs[0] = be32_to_cpu(size);
-#ifdef CONFIG_USER_ONLY
-    ((TaskState *)env->opaque)->swi_errno = err;
-#else
-    syscall_err = err;
-#endif
-}
-
-#define ARG(n)					\
-({						\
-    target_ulong __arg;				\
-    /* FIXME - handle get_user() failure */	\
-    get_user_ual(__arg, args + (n) * 4);	\
-    __arg;					\
-})
-#define SET_ARG(n, val) put_user_ual(val, args + (n) * 4)
-uint32_t do_arm_semihosting(CPUState *env)
-{
-    target_ulong args;
-    char * s;
-    int nr;
-    uint32_t ret;
-    uint32_t len;
-#ifdef CONFIG_USER_ONLY
-    TaskState *ts = env->opaque;
-#else
-    CPUState *ts = env;
-#endif
-
-    nr = env->regs[0];
-    args = env->regs[1];
-    switch (nr) {
-    case SYS_OPEN:
-        if (!(s = lock_user_string(ARG(0))))
-            /* FIXME - should this error code be -TARGET_EFAULT ? */
-            return (uint32_t)-1;
-        if (ARG(1) >= 12)
-            return (uint32_t)-1;
-        if (strcmp(s, ":tt") == 0) {
-            if (ARG(1) < 4)
-                return STDIN_FILENO;
-            else
-                return STDOUT_FILENO;
-        }
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "open,%s,%x,1a4", ARG(0),
-			   (int)ARG(2)+1, gdb_open_modeflags[ARG(1)]);
-            return env->regs[0];
-        } else {
-            ret = set_swi_errno(ts, open(s, open_modeflags[ARG(1)], 0644));
-        }
-        unlock_user(s, ARG(0), 0);
-        return ret;
-    case SYS_CLOSE:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "close,%x", ARG(0));
-            return env->regs[0];
-        } else {
-            return set_swi_errno(ts, close(ARG(0)));
-        }
-    case SYS_WRITEC:
-        {
-          char c;
-
-          if (get_user_u8(c, args))
-              /* FIXME - should this error code be -TARGET_EFAULT ? */
-              return (uint32_t)-1;
-          /* Write to debug console.  stderr is near enough.  */
-          if (use_gdb_syscalls()) {
-                gdb_do_syscall(arm_semi_cb, "write,2,%x,1", args);
-                return env->regs[0];
-          } else {
-                return write(STDERR_FILENO, &c, 1);
-          }
-        }
-    case SYS_WRITE0:
-        if (!(s = lock_user_string(args)))
-            /* FIXME - should this error code be -TARGET_EFAULT ? */
-            return (uint32_t)-1;
-        len = strlen(s);
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "write,2,%x,%x\n", args, len);
-            ret = env->regs[0];
-        } else {
-            ret = write(STDERR_FILENO, s, len);
-        }
-        unlock_user(s, args, 0);
-        return ret;
-    case SYS_WRITE:
-        len = ARG(2);
-        if (use_gdb_syscalls()) {
-            arm_semi_syscall_len = len;
-            gdb_do_syscall(arm_semi_cb, "write,%x,%x,%x", ARG(0), ARG(1), len);
-            return env->regs[0];
-        } else {
-            if (!(s = lock_user(VERIFY_READ, ARG(1), len, 1)))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            ret = set_swi_errno(ts, write(ARG(0), s, len));
-            unlock_user(s, ARG(1), 0);
-            if (ret == (uint32_t)-1)
-                return -1;
-            return len - ret;
-        }
-    case SYS_READ:
-        len = ARG(2);
-        if (use_gdb_syscalls()) {
-            arm_semi_syscall_len = len;
-            gdb_do_syscall(arm_semi_cb, "read,%x,%x,%x", ARG(0), ARG(1), len);
-            return env->regs[0];
-        } else {
-            if (!(s = lock_user(VERIFY_WRITE, ARG(1), len, 0)))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            do
-              ret = set_swi_errno(ts, read(ARG(0), s, len));
-            while (ret == -1 && errno == EINTR);
-            unlock_user(s, ARG(1), len);
-            if (ret == (uint32_t)-1)
-                return -1;
-            return len - ret;
-        }
-    case SYS_READC:
-       /* XXX: Read from debug cosole. Not implemented.  */
-        return 0;
-    case SYS_ISTTY:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "isatty,%x", ARG(0));
-            return env->regs[0];
-        } else {
-            return isatty(ARG(0));
-        }
-    case SYS_SEEK:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "lseek,%x,%x,0", ARG(0), ARG(1));
-            return env->regs[0];
-        } else {
-            ret = set_swi_errno(ts, lseek(ARG(0), ARG(1), SEEK_SET));
-            if (ret == (uint32_t)-1)
-              return -1;
-            return 0;
-        }
-    case SYS_FLEN:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_flen_cb, "fstat,%x,%x",
-			   ARG(0), env->regs[13]-64);
-            return env->regs[0];
-        } else {
-            struct stat buf;
-            ret = set_swi_errno(ts, fstat(ARG(0), &buf));
-            if (ret == (uint32_t)-1)
-                return -1;
-            return buf.st_size;
-        }
-    case SYS_TMPNAM:
-        /* XXX: Not implemented.  */
-        return -1;
-    case SYS_REMOVE:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "unlink,%s", ARG(0), (int)ARG(1)+1);
-            ret = env->regs[0];
-        } else {
-            if (!(s = lock_user_string(ARG(0))))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            ret =  set_swi_errno(ts, remove(s));
-            unlock_user(s, ARG(0), 0);
-        }
-        return ret;
-    case SYS_RENAME:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "rename,%s,%s",
-                           ARG(0), (int)ARG(1)+1, ARG(2), (int)ARG(3)+1);
-            return env->regs[0];
-        } else {
-            char *s2;
-            s = lock_user_string(ARG(0));
-            s2 = lock_user_string(ARG(2));
-            if (!s || !s2)
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                ret = (uint32_t)-1;
-            else
-                ret = set_swi_errno(ts, rename(s, s2));
-            if (s2)
-                unlock_user(s2, ARG(2), 0);
-            if (s)
-                unlock_user(s, ARG(0), 0);
-            return ret;
-        }
-    case SYS_CLOCK:
-        return clock() / (CLOCKS_PER_SEC / 100);
-    case SYS_TIME:
-        return set_swi_errno(ts, time(NULL));
-    case SYS_SYSTEM:
-        if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "system,%s", ARG(0), (int)ARG(1)+1);
-            return env->regs[0];
-        } else {
-            if (!(s = lock_user_string(ARG(0))))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            ret = set_swi_errno(ts, system(s));
-            unlock_user(s, ARG(0), 0);
-            return ret;
-        }
-    case SYS_ERRNO:
-#ifdef CONFIG_USER_ONLY
-        return ts->swi_errno;
-#else
-        return syscall_err;
-#endif
-    case SYS_GET_CMDLINE:
-#ifdef CONFIG_USER_ONLY
-        /* Build a commandline from the original argv.  */
-        {
-            char **arg = ts->info->host_argv;
-            int len = ARG(1);
-            /* lock the buffer on the ARM side */
-            char *cmdline_buffer = (char*)lock_user(VERIFY_WRITE, ARG(0), len, 0);
-
-            if (!cmdline_buffer)
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-
-            s = cmdline_buffer;
-            while (*arg && len > 2) {
-                int n = strlen(*arg);
-
-                if (s != cmdline_buffer) {
-                    *(s++) = ' ';
-                    len--;
-                }
-                if (n >= len)
-                    n = len - 1;
-                memcpy(s, *arg, n);
-                s += n;
-                len -= n;
-                arg++;
-            }
-            /* Null terminate the string.  */
-            *s = 0;
-            len = s - cmdline_buffer;
-
-            /* Unlock the buffer on the ARM side.  */
-            unlock_user(cmdline_buffer, ARG(0), len);
-
-            /* Adjust the commandline length argument.  */
-            SET_ARG(1, len);
-
-            /* Return success if commandline fit into buffer.  */
-            return *arg ? -1 : 0;
-        }
-#else
-      return -1;
-#endif
-    case SYS_HEAPINFO:
-        {
-            uint32_t *ptr;
-            uint32_t limit;
-
-#ifdef CONFIG_USER_ONLY
-            /* Some C libraries assume the heap immediately follows .bss, so
-               allocate it using sbrk.  */
-            if (!ts->heap_limit) {
-                long ret;
-
-                ts->heap_base = do_brk(0);
-                limit = ts->heap_base + ARM_ANGEL_HEAP_SIZE;
-                /* Try a big heap, and reduce the size if that fails.  */
-                for (;;) {
-                    ret = do_brk(limit);
-                    if (ret != -1)
-                        break;
-                    limit = (ts->heap_base >> 1) + (limit >> 1);
-                }
-                ts->heap_limit = limit;
-            }
-
-            if (!(ptr = lock_user(VERIFY_WRITE, ARG(0), 16, 0)))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            ptr[0] = tswap32(ts->heap_base);
-            ptr[1] = tswap32(ts->heap_limit);
-            ptr[2] = tswap32(ts->stack_base);
-            ptr[3] = tswap32(0); /* Stack limit.  */
-            unlock_user(ptr, ARG(0), 16);
-#else
-            limit = ram_size;
-            if (!(ptr = lock_user(VERIFY_WRITE, ARG(0), 16, 0)))
-                /* FIXME - should this error code be -TARGET_EFAULT ? */
-                return (uint32_t)-1;
-            /* TODO: Make this use the limit of the loaded application.  */
-            ptr[0] = tswap32(limit / 2);
-            ptr[1] = tswap32(limit);
-            ptr[2] = tswap32(limit); /* Stack base */
-            ptr[3] = tswap32(0); /* Stack limit.  */
-            unlock_user(ptr, ARG(0), 16);
-#endif
-            return 0;
-        }
-    case SYS_EXIT:
-        exit(0);
-    default:
-        fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr);
-        cpu_dump_state(env, stderr, fprintf, 0);
-        abort();
-    }
-}